Radeon HD 4580 and GeForce GTS 450 OEM - video card comparison
Radeon HD 4580
GeForce GTS 450 OEM
Architecture
TeraScale (2005−2013)
Fermi (2010−2014)
GPU code name
RV635
GF106
Market segment
Desktop
Desktop
Release date
November 2011
October 2010
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
1x 6-pin
Core clock speed
796 MHz
790 MHz
Floating-point performance
191.04 gflops
455.0 gflops
Manufacturing process technology
55 nm
40 nm
Number of transistors
378 million
1,170 million
Pipelines / CUDA cores
120
144
Power consumption (TDP)
65 Watt
106 Watt
Texture fill rate
6.368
18.96
Memory type
GDDR3
GDDR5
Maximum RAM amount
512 MB
1536 MB
Memory bus width
128 Bit
192 Bit
Memory clock speed
1386 MHz
4000 MHz
Memory bandwidth
22.18 GB/s
96 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x mini-HDMI
HDMI
-
+
DirectX
10.1 (10_1)
12 (11_0)
CUDA
-
2.1
OpenCL
N/A
1.1
OpenGL
3.3
4.6
Shader Model
4.1
5.1
Vulkan
N/A
N/A